Extra-High-Voltage Single and Twin Bundle Conductors Electrical Characteristics and Conductor Selection

This paper contains data on eight important aluminum conductors which are being used, or being considered for use, on high-voltage (HV) and extra-high-voltage (EHV) lines. The first part deals with resistance, temperature, and current characteristics. Useful equations and curves are presented describing these characteristics for a broad range of environmental conditions. The second part contains data relating to the economics of conductor selection in single and twin bundle configurations.